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Pins not Setting

If you scrub a lock and pins are not setting even when you vary the torque, then some pin has false set and it is keeping the rest of the pins from setting. Consider a lock whose pins prefer to set from back to front. If the backmost pin false sets high or low, then the plug cannot rotate enough to allow the other pins to bind. It is hard to recognize that a back pin has false set because the springiness of the front pins makes it hard to sense the small give of a correctly set back pin. The main symptom of this situation is that the other pins will not set unless a very large torque is applied.

When you encounter this situation, release the torque and start over by concentrating on the back pins. Try a light torque and moderate pressure, or heavy torque and heavy pressure. Try to feel for the click that happens when a pin reaches the sheer line and the plug rotates slightly. The click will be easier to feel if you use a stiff torque wrench.

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